I need to know if it's possible to compare and test how fast is an IP (ie: any web or game server) relative to my location (in terms of network latency), even if they have disabled ICMP/Ping requests ...

I am using TOR and setting up a transparant proxy depending on users. I had trouble to constrain ICMP messages on UID. But I found an explanation for that on server fault.
For the sake of privacy: is ...

UDP is connectionless, so I can't expect a response packet, necessarily. If the port is closed, I might get an ICMP error message, but if the firewall could silently drop the ICMP packet How could I ...

(Note: I moved this question from StackOverflow, because it's to be considered off-topic there, better fits here, and still unsolved)
I have a udp client using luasocket, basically doing this (with a ...

Is it possible to use pwnat and SSH to establish a "peer-to-peer" SSH connection between two machines that are behind two separate firewalls/NATs?
If this is possible, what are the steps that would ...

While analyzing some traffic logs, I noticed a node pinging its gateway with a large ping packet size, ranging from 700 bytes to 1 MB. It's a constant ping from node to gateway and the size per ping ...

I made lots of search but couldn't find useful info about how create ICMP Code-3 (dest. unreachable) error and capture it with Wireshark. I tried to ping a closed port in Linux machine and also used ...

I noticed while debugging some NATing issues at work that Windows (Windows 7 in this case) echo reply and echo responses are always setting the ICMP identifier field to the same value regardless of ...

I am new to wireshark and I am trying to capture an ICMP packet over 802.11g, I am using windows and pingplotter. The issue is that on wireshark capture I am not getting any ICMP packets no matter how ...

I am looking at sending a single ICMP message to a server and recieving one single ICMP reply.
The question that I'm trying to answere is if it is possible to send an ICMP ping over a wifi that i do ...

For a standard desktop computer running Ubuntu 12.04 behind a NAT router, what ICMP packets should one accept in the firewall, say iptables?
It seems there is often conflicting advice; some say block ...

I'm trying to have a play with ptunnel, I have it running (listening) on my raspberry pi in my DMZ and I can connect to it from my LAN and tunnel ssh over it, but I can't get it to work over my LAN.
...

I want to see how the routing table changes on a Linux system, when an ICMP redirect is received.
For that I use
icmpush -v red -sp current-gateway -gw new-gateway -dest google.com -c host -prot tcp ...

Here at my job I have 5 machines with Windows 8 Consumer Preview installed on it. Today I was testing the network conectivity and any of the 5 machines answered to a ICMP ping request(but from another ...

If I want to know for sure that a web site is really blocked by the authorities or the site itself faking it, what kind of a method can I use..? I mean that when we use tracer it just use the ICMP... ...

To configure Linux to ignore ICMP broadcasts (to protect from SMURF attacks), I have added the following line to /etc/sysctl.conf:
net.ipv4.icmp_echo_ignore_broadcasts = 1
Anyone knows what are the ...

I don't want to tunnel TCP over ICMP (as ptunnel does), I want to go the other way around.
I'm in the situation where I have TCP (HTTP) connectivity to a machine but an internal firewall over which I ...